Headphones



FIG. 1 is a top front perspective view of headphones showing the claimed design;

FIG. 2 is a bottom rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the figures show portions of the headphones that form no part of the claimed design. 

CLAIM The ornamental design for headphones, as shown and described. 